Sheet-delivery apparatus for printing-machines.



H. M. BARBER.

SHEET DELIVERY APPARATUS FOR PRINTING MACHINES.

APPLICATION mgu Jun: 9. 1909.

1,1 59,638. I Pa tented'Nov. 9, 1915.

Thin/@519 615* I /awn H. M. BARBER.

DELiVERY APPARATUS FOR PRiNTING MACHINES SHEET AFPLlCATlON HLED JUNE 9. 2909- Patented Nov, 9, 1915.

4 $HEETSSHEET 2.

H. M. BARBER. SHEET DELIVERY APPARATU 8 FOR PRINTING MACHINES.

APPLICATiON FILED IUNE9. 1909.

Patentd Nov 9, 1915.

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H. MBARBER. SHEET DELIVERY APPARATUS FOR PR!1"2TIY JGI\IACHINES,

APPLXCATION FILED }UNE 9.1909.

Patented Nov. 9, 191'.

UNITED STATES PATENT OFFICE.

HOWARD M. BARBER, OF STONINGTON, CONNECTICUT, ASSIGNOR, BY MESNE ASSIGN- MENI'S, TO 0. B. GOTTRELL 8c SONS COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

SHEET-DELIVERY APPARATUS FOR PRINTlNG-IYLACHINES.

Specification of Letters Patent.

Patented Nov. 9, 1915..

Application filed June 9, 1909. Serial No. 501,@93.

- To all whom it may boncern tion, form and arrangement of the several parts of a sheet delivery apparatus for printing machines whereby the sheets may be delivered either with their freshly printed sides up or with their freshly printed sides down, as may be desired,

I without requiring the use of a fly and its operating mechanism.

This invention comprises a sheet, de-

' livery apparatus whiehincludes an endless delivery carrier arran ed to receive the sheets one side" up an deliver them the same side up or the other side up as may be desired.

This invention further comprises means for driving the endless delivery carrier in either direction and means for feeding the sheets to the under side of the carrier when it is caused to travel outwardly, for depositing the sheets printed side up or for feeding the sheets to the upper side of the carrier when it is caused to travel outwardly, for depositing the sheets printed side down, the carrier grippers being made readily reversible and their operating cams being suitably arranged to insure the proper action of the grippers for receiving, conveying and depositing the sheets.

In the embodiment of-- the invention shown herein, the outer end of the endless tape carrier which comprises the means for feeding the sheets to the endless sheet delivery carrier, is raised and lowered for feeding the sheets to the under or upper side of the delivery carrier, means being provided for driving the endless delivery carrier in either direction.

The means for feeding thesheets to the endless delivery carrier of the sheet delivery apparatus shown herein comprises an intermittently driven endless tape carrier, the top side of which runs ahead when receiving the sheets from the press for presenting the sheets to the carrier grippers. As the carrier grippers close down upon the sheet, the tape carrier ceases to travel and it remains at rest while the sheet is being drawn outwardly by the carrier grippers.

The endless delivery carrier is herein shown as endless chains, which chains carry the bars of the carrier grippers, which gripper bars may be reversed so as to present the grippers properly as the movement of the carrler 1s reversed.

In. the accompanying drawings, the invention 18 shown in connection with a tworevolution rotary cylinder printlng machine, but it is to be understood that it may be applied to printing machines of any type.

Figure 1 1s a side new of 'QOI'UOIIS of a two-revolution cylinder printing machine,

having applied thereto the improved sheet delivery apparatus, the parts being in the position which they assume when the endless tape carrier is arranged in position to feed thesheets to the upper side of the endless delivery carrier whereby the sheets may be received by the endless delivery carrier one Side up, as, for instance, the printed side up and deposited the other side'up. as

for instance, the printed side down, Fig.

l" is a detail section showing more clearly the tapes of the endless tape carrier and its driving mechanism, Fig. 2 is a top plan viewof the parts shown in Fig. 1, Fig. 3 is an enlarged detail view in end elevation partially in section showing the connection of the gripper bars to one of the delivery carrier chains, Fig. 4: is an enlarged detail view showing one of the sets of grippers and the stationary cam for opening the grippers to receive the advance edge of the sheet on the upper side of the delivery car rier, Fig. 5 1s a similar view showing the.

grippers reversed and the cam for opening the same to receive the advance edge of the sheet when fed to the under side of the delivery carrier, Fig. 5 is a" section taken in the plane of the line A-A of Fig. 2, Fig. 7

is a similar section, the grippers and their operating cams on the near side of the machine being left in position, the endless tape carrier being in its lowered position for feeding the sheets to the underside of the moving the under side of delivery. carrier, the delivery carrier "grippers being reversed from theposition shown in Fig. 6, and the delivery carrier being connected to be driven in the reverse direction from that shown in Fig. 6, Fig. 8

is a detail view in side elevation showing the driving gears for the endless delivery carr er arranged for moving the uoperside of the carrier outwardly where the sheets are to be received one side up and delivered the other side up, Fig. 9 is a' similar view showing the delivery carrier outwardly where the sheet is to be received one side .up and deposited the same side up, Fig. lO'is a detail side view showing the gearing for-imparting the intermittent movement to the endless tape carriers,

the gears 8, ,9.

and its impression 11 is a top plan view of the same,

12 is a section taken i-njthe plane of the line v1 3MB 05mg. 10,. Fig. 13 is a section taken in the plane of the in I l 12, Fig. 14 is asection taken in the plane of the line D-D of Fig. 12, and Fig. 15-isa section taken in the planenf the line E -E 7 portion of theprintingpress herein shown, the form cylinder is denoted by 1 cylinder by 2. Thefform cylinder gear '3 is driven from ageara on the drive shaft .5, which shaft is driven from a suitable motor 3; The cam shaft 7 is driven from the form cylinder 1 through 1 In the v The sheet receiving table is and the'sheet joggers by 11.-

The table may be adjusted vertically and the oggers operated by any Well known or approved mechanism, which m echanism forms no part of the present lnvention.

The side chains 12,13, ofthe endless sheet (1 pass around sprockets 14,

delivery carrier 15, mounted on stud shafts 16,17, at the in nor end of the carrier wheels l8, 19, mounted on a cross shaft 20, at the outer end of the carrier. This carrier is driven in either direction by the following means :A vertical shaft is mounted on the side framing of the machine, which shaft has slidably keyed thereon oppositely arranged upper and lower bevel gears 22, 23. This vertical shaft-2i. is further provided with a bevel gear connection 24, 25, with a horizontal shaft 26, which, in turn, has a bevel gear connection 27, 28, with a stud shaft 29 driven from the drive shaft 5 through spur gears 30, .34.

The m, dle s delivery carrier shaft ":is Provid bevel. gear when the delivery carrier is to be driven in a direction to move its upper side outwardly, I the bevel gear 23, on the shaft 21, is brought" into mesh with the bevel gear 32 and'lis locked in such position EVhen thedehvery carrier isto .be'dr1ven 1n the driving gears arranged for- Fig.

v them thejsame side up, the

' end thereof. These The jaw tion'ary and the jaw 38 is movable and is held yieldingly closed by a spring 42.

denoted by 10 and around sprocket serve the advance edge of-the sheg thereto. As the grippers near the of'the carrief,'the

by the set screw'33.

the reverse direction for moving its under side outwardly, the bevel gear 23 is disconnected from the-bevel gear 32 and the bevel gear 22 is brought into mesh with the bevel gear 32 andlocked in such position by the set screw 34. u

The endless delivery carrier may be pro vided with one or more sets of sheet grippers, in the present instance two of these sets of grippers are shown. Eachset of grippers may be made reversible by turning their bars 35, 36, end for end, so as to present the jaws 37,38, of the grippers in the proper direction for receiving the sheets as they are fed to the delivery carrier. lVhen the carrier is to-be used for receiving the sheets one side up and delivering them" the other side up, the grippers are'arranged .to receive'the sheets as they are fed A cam roller 43 is carried by an arm 44 fixed to the bar 36 at one end thereof, which cam roller is arranged to engage either of two sets of stationary direction of travel of the delivery carrier.

When the set of grippers is arranged to receive the sheets at the upper sideof'the elivery carrier at its inner end, thecam roller .43 is fitted to engage a stationary cam .545 on the stud shaft 17 for causing the grippers to open to receive the advance edge of the sheet being fed thereto. After the grippers have passed around the'oute'r end of the. carrier and are traveling inwardlv along the'nnder side thereof, the gripper cam roller 43 will be engaged by a stationary cam- 46 for opening the grippers to permit the deposit of the sheet on the tablelU, the reverse side up from the way the sheet was received-by the delivery carrier. When the set of grippers isarranged for receiving the sheets on the under side of the c arrier at ,the inner end thereof, thezgripper cam, roller-43 will be" engaged by a stationai y "cam 47 for opening the grip rs to reouter end grippers to'deposit the sheet upon the. receiving table 10, the same side up as the sheet wasted to the delivery carrier.

cams according-to the being fed 121'. roller 43 wil'l'be engaged 5 by the stationary cam- 48 for opening the insaeaa Atremovable cylinder 49 is secured upon vthe outer Idelivery carrier shaft around which" the "sheets are 'caused to pass when -they are fed to the upperside of the de- 5 livery carrier.

a It is to be understood that suitable stops .fand eheetguides may be employed for in suring-the accuratedeposit of the sheets Tarpon the table 10. ,ffjThe means-for conveying the sheets from the'impression" cylinder of the printing mastructed arranged; and operated as foljlows The intermittently driven tape car- :ri'er fcompris'es the tapes 50. which pass .around' pulleys 51 on the rotary shaft 52 at their miter end and aroundpulleys 53 on (1 the shaft'54 at their inner ends. The sheets tapes and extends to the point of delivery of the carrier,whi'ch sheet guide is supportupon a cross bar vcarried bythe swing- .i'ng frame 57. As the sheets leave the outer end of the tape carrier they passibetween the sheet guide 59 and another sheet guide 61. The tape carrier is driven intermittently for conveying the sheet from the im- 5 pression cylinder to the delivery carrier grippers. The travel ofthe tape then ceases as the grippers close upon the leading edge of the sheet thus permitting the sheets to be drawn from the tapes at a much less sur- 4a facespeed than the normal speed of the v tapes without compelling the sheet being fed ahead to cause the middle or rear end of the sheet to drag upon the sheet previously deposited upon the receiving table. Thisvintermittent travel is imparted to-the tape carrier by anywell known or approved ,inechanism, such, for instance, as that "shown,- described and claimed in applicants :United. States Letters Patent No. 757248, 5g, dated April 12, 1904:, a brief description of which follows:An endless belt 62 passes around a pulley 63 on-the shaft 52 and around a pulley 64 loosely mounted on the shaft 65. The form cylinder gear 66 drives turn, drives the gear 68 on the stud axle 69. This gear 68 meshes with a gear .70 fixed to theshaft 65, which, in turn, meshes with a gear 71 fixed to the shaft 72 mounted in the bracket 73. A gear 74: islloosely mounted on the stud axle 69 and a roller clutch 75 is interposed between this gear 74 andthe hub of the gear 68 so This gear 7% meshes with a gear 76 loosely :chine to thesheet. delivery carrier is con- 58 adjacent to the inner tape carrying shaft the impression cylinder gear 67 which, in,

that the gear 7-1 is driven with the gear 68.

have an equal number of teeth but the gear 7% has a lesser number of teeth than the gear 76. The gear 76 carries on its outer face a clutch 77 in the form of a divided elastic ring, which clutch is received in an annular groove 78 in the driving pulley 64. For expanding the clutch ring 77 to couple the pulley 6l1to' the gear 7 6, there is inserted through the gear76 a pin 79 which has a flattenedlhead located between the ends of the divided clutch ring as clearly shownin Fig. 15; This pin 7 9 is rocked by providing it with an arm 80 having a stud '81 located in a cam groove '82 in the gear 70. :Thes'hape'of this cam groove 82 is such thatthe pulley 6a will be clutched to the gear 76 at the desired intervals for obtaining an intermittent movement of the endless tape carrier.

This pulley 6e, when clutched to the gear 76, is driven at a slower speed than the'gears 68, 70, because of the mounted on the shaft 65. The gears 68 and I gear 74 having a lesser number of teeth than the gear '7 6.

The driving mechanism of the several.

parts is so arrange that the endless tape carrier trayels at the surface speed of-the impressioncylinder and at a speed one and one-half times faster than the endless delivery carrier.

fsheets from the impression cylinder onto the tape carrier.

Arpositive sheet forwarding device is provided for engaging the sheet on theendless tape carrier before it is released by the feeding rollers 83, 84, which sheet forwarding device comprises rollers driven at the speed of the impression cylinder and endless tape carrier, arranged to engage the opposite sides of the sheet for feeding the sheet to the grippers, on the delivery carrier, at the speed of the endless tape carrier. This sheet forwarding device is constructed, arranged and operated as follows :The cross shaft 85 which carries the lower. set of rollers 86 is mounted in the swinging frame 57 and is driven from the shaft 65 through a belt and pulley connection 87, 88, 89, the relative sizes of the pulleys 88 and 89 being such that the rollers 86 will be driven at the same surface speed as the impression cylinder and endless tape carrier. The upper cross shaft 90, which bears the drop rollers 91, is carried by the arms 92 of a rock shaft 93. The shaft is provided with a spur gear 94 which is in mesh at all times with a spur gear 95 on the shaft 85, as the shaft 90 is lowered and raised.

The sheet forwarding device is operated to release the sheet as the advance edge of the sheet reaches and is grasped by the delivery carrier grippers, by the following means The arm 96 of the rock shaft 93 is attached to the upper end of a rod 97, the lower end of which rod is provided with a stud roller 98 engaged by a cam 99 on the cam shaft 7.

The mechanism for raising and lowering the endless tape carrier for feeding the sheets therefrom to the upper or under side of the delivery carrier is constructed, ar-

ranged and operated as follows: The free end of the swinging frame 57 is provided with sector-racks 100 which mesh with pinions 101 on a shaft 102, which shaft may be v manually rotated by the use of a hand wheel In operation, when the sheets are to be received by the delivery carrier printed side up and deposited upon the table 10 printed side up, the tape carrier frame 57 is lowered to bring its outer end into position to deliver the advance edges of the sheets to a point where they may be grasped by the delivery carrier grippers on the under side of the de livery carrier at the inner end thereof.

The delivery carrier driving mechanism is connected to drive the under side of the carrier-outwardly. The cams 47.,and 48 will open the grippers for receiving the sheet and again open the grippers for depositing the sheet. I r I When the sheets are to be fed to the delivery carrier printed side up and deposited upon the table 10 printed side down, the tape carrier frame 57 is raised to bring the sheets into position to be grasped by the grippers on the upper side of the carrier at the inner end thereof, the said grippers being first reversed on the delivery carrier chains. 7 mechanism is then connected for driving the upper side of the same outwardly. The

20 has the cylinder 49 secured thereon around which the sheet is caused to pass, In both of the above operations, the endless tape carrier is so operated that it will be The delivery carrier chain driving moved forwardly to bring the advdn'ceedgm be engaged by the delivery carrier grippers.

The movementof the tape carrier is then stopped and the rollers of the'sheet forwardmg device are released as the delivery carrier grippers close on the'sheet for conveydF Fad ing the same into position to be upon the receiving table.

W'hatI claim is: 1. In a sheet delivery apparatus for printing machines, an endless delivery carrier,

means for reversing the direction of travel a of the same, a sheet feeding'endless" tape carrier, a positive sheet forwarding device arranged to engage and release the sheet and means for raising and lowering the tape carrier and sheet forwardingdevicewhereby the sheets are fed tothe uppeforunder side of the delivery carrier.

2. In a sheet delivery,apparatusfdr printing machines, an endless delivery carrier driven at a certain speed, means for revers} ing the direction of travel of the car'r1er,a sheet feeding endless tape carrier driven at a greater speed, a positive sheet'fo'rwarding dQVlCB' driven at the speed of the tape carrier arranged to engage the sheet for feeding'it- 1nto pos1t1on to be engaged by the del yery carrier and means for raising and lowering the tape carrier and sheet forwarding device whereby the sheets are fed to the upper' orj under side of the delivery carrier.

3. In a sheet delivery apparatus for printing machines, an endless delivery carrier, 1

means for reversing the direction of travel of the carrier .a sheet feeding endless tape carrier, a positive sheet forwarding .devi-car arranged to engage the sheet for-feeding it? i intopositlon to be engaged by the delivery 5 carrier, means for stopping the movement of the tape carrier and disengaging thesheet forwarding device from the sheet as the :{f sheet is engaged by the delivery carrier, and

means for raising and loweringthe tape ear rier and sheet forwarding device wherebythe sheets are fed to the upper or under side of the delivery carrier.

In testimony, that I claim the foregoing f as my invention, I have signed my name in presence of two witnesses, this twenty eighth y of ay, 1909. I

Witnesses: It

F. GEoRon BARRY, G. S. SUNDGREN.

HOWARD 1M; Blasts. 

